GB913148A - Process for the production of inert gas mixtures - Google Patents

Process for the production of inert gas mixtures

Info

Publication number
GB913148A
GB913148A GB3968/61A GB396861A GB913148A GB 913148 A GB913148 A GB 913148A GB 3968/61 A GB3968/61 A GB 3968/61A GB 396861 A GB396861 A GB 396861A GB 913148 A GB913148 A GB 913148A
Authority
GB
United Kingdom
Prior art keywords
mixture
air
nitrogen
hydrogen
absent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3968/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB913148A publication Critical patent/GB913148A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/14—Production of inert gas mixtures; Use of inert gases in general
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/02—Preparation of nitrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/04—Purification or separation of nitrogen
    • C01B21/0405—Purification or separation processes
    • C01B21/0411—Chemical processing only
    • C01B21/0422—Chemical processing only by reduction
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B23/00—Noble gases; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2210/00—Purification or separation of specific gases
    • C01B2210/0043—Impurity removed
    • C01B2210/0045—Oxygen

Abstract

A mixture of nitrogen and noble gases in which free oxygen is absent is produced from air by adding air to a mixture of nitrogen and noble gases in which free oxygen is absent, in a proportion of less than 1 part of air to 10 parts of said mixture, adding sufficient hydrogen to the mixture so formed to react with all the oxygen present in the added air, passing the mixture so formed over a catalyst for the reaction between hydrogen and oxygen to form water, separating a minor proportion of the mixture of nitrogen and noble gases in which free oxygen is absent so formed, and recycling the remainder of said mixture for the addition of further air thereto. The catalyst may be copper or a platinum metal, on a suitable carrier, and the water formed may be completely removed, e.g. by condensation, or partially removed to give a gas mixture of defined water content by passing the mixture over a drying agent, many of which are specified. If desired a stoichiometric excess of hydrogen may be added so that the final gas mixture contains hydrogen. To start the process any inert gas mixture may be used to dilute the air, since nitrogen and noble gas mixtures may not be available.
GB3968/61A 1960-02-04 1961-02-02 Process for the production of inert gas mixtures Expired GB913148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ0007798 1960-02-04

Publications (1)

Publication Number Publication Date
GB913148A true GB913148A (en) 1962-12-19

Family

ID=7620266

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3968/61A Expired GB913148A (en) 1960-02-04 1961-02-02 Process for the production of inert gas mixtures
GB20915/61A Expired GB931469A (en) 1960-02-04 1961-06-09 Process for the production of inert gas mixtures

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB20915/61A Expired GB931469A (en) 1960-02-04 1961-06-09 Process for the production of inert gas mixtures

Country Status (3)

Country Link
DE (1) DE1417743A1 (en)
FR (1) FR80157E (en)
GB (2) GB913148A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057510A (en) * 1975-09-29 1977-11-08 Texaco Inc. Production of nitrogen rich gas mixtures
GB2173182A (en) * 1985-03-28 1986-10-08 Boc Group Inc Methods and apparatus for purifying inert gas streams

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3137569A1 (en) * 1981-09-22 1983-04-21 Leybold-Heraeus GmbH, 5000 Köln METHOD AND DEVICE FOR PRODUCING HIGH PURITY NITROGEN
FR2640159B1 (en) * 1988-12-09 1992-04-24 Commissariat Energie Atomique PROCESS AND DEVICE FOR PURIFYING A NEUTRAL GAS CONTAINING OXYGEN AND / OR HYDROGEN IMPURITIES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057510A (en) * 1975-09-29 1977-11-08 Texaco Inc. Production of nitrogen rich gas mixtures
US4119566A (en) * 1975-09-29 1978-10-10 Texaco Inc. Production of nitrogen-rich gas mixtures
GB2173182A (en) * 1985-03-28 1986-10-08 Boc Group Inc Methods and apparatus for purifying inert gas streams
GB2173182B (en) * 1985-03-28 1989-06-21 Boc Group Inc Methods and apparatus for purifying inert gas streams

Also Published As

Publication number Publication date
GB931469A (en) 1963-07-17
FR80157E (en) 1963-03-22
DE1417743A1 (en) 1969-01-02

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